PSI - Issue 77

Ercan Işik et al. / Procedia Structural Integrity 77 (2026) 465 – 474 Ercan Işik et al./ Structural Integrity Procedia 00 (2026) 000 – 000

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Table 3. Models created for different transverse reinforcement conditions in columns. Model Cross-section

Description

Model VI

Transverse reinforcement Φ10/200

Model VII

Transverse reinforcement Φ10/300

Model VIII

Transverse reinforcement Φ12/200

Model IX

Transverse reinforcement 90° hooked; Φ8/200

Model X

Reinforcement tie; Φ8/200

The comparison of the shear forces for different transverse reinforcement conditions is given in Table 4. In Türkiye's earthquake regulations, the use of special stirrups has become mandatory. The results of the structural analysis clearly demonstrate the validity of this requirement. In Model X, which incorporates stirrups, there is no exceedance of limits; on the contrary, the shear force capacities of the columns have increased due to the stirrups that enhance the transverse reinforcement per unit area. Additionally, the diameter of the transverse reinforcement positively affects the contribution of the stirrups to the columns. In this context, for Models VI and VIII, there are no columns exceeding the limit shear forces, while the shear forces significantly increased as the diameter of the transverse reinforcement increased. However, in Model VII, where the spacing is excessive, seven columns exceeded the limit shear force values, highlighting the importance of transverse reinforcement spacing. Türkiye's